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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameSlot.java @ 16052:80b0bd9e29c8

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FrameSlot: fix import
author Bernhard Urban <bernhard.urban@jku.at>
date Fri, 06 Jun 2014 09:42:16 +0200
parents e122dc0436be
children 9d55732d0880
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a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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1 /*
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
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10 *
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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parents:
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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parents:
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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14 * version 2 for more details (a copy is included in the LICENSE file that
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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parents:
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15 * accompanied this code).
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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16 *
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17 * You should have received a copy of the GNU General Public License version
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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parents:
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18 * 2 along with this work; if not, write to the Free Software Foundation,
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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parents:
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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20 *
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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parents:
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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22 * or visit www.oracle.com if you need additional information or have any
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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23 * questions.
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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24 */
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25 package com.oracle.truffle.api.frame;
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26
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27 import com.oracle.truffle.api.*;
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28 import com.oracle.truffle.api.CompilerDirectives.CompilationFinal;
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29
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30 /**
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31 * A slot in a frame that can store a value of a given type.
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32 */
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33 public final class FrameSlot implements Cloneable {
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34
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35 private final FrameDescriptor descriptor;
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36 private final Object identifier;
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37 private final int index;
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38 @CompilationFinal private FrameSlotKind kind;
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39
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40 public FrameSlot(FrameDescriptor descriptor, Object identifier, int index, FrameSlotKind kind) {
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41 this.descriptor = descriptor;
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42 this.identifier = identifier;
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43 this.index = index;
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44 this.kind = kind;
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45 }
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46
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47 public Object getIdentifier() {
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48 return identifier;
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49 }
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50
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51 public int getIndex() {
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52 return index;
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53 }
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54
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55 public FrameSlotKind getKind() {
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56 return kind;
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57 }
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58
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59 public void setKind(final FrameSlotKind kind) {
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60 if (this.kind != kind) {
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61 CompilerDirectives.transferToInterpreter();
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62 this.kind = kind;
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63 this.descriptor.updateVersion();
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64 }
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65 }
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66
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67 @Override
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68 public String toString() {
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69 return "[" + index + "," + identifier + "," + kind + "]";
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70 }
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71
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72 public FrameDescriptor getFrameDescriptor() {
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73 return this.descriptor;
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74 }
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75 }